205071472 has 40 divisors (see below), whose sum is σ = 409942016. Its totient is φ = 99320256.

The previous prime is 205071457. The next prime is 205071509. The reversal of 205071472 is 274170502.

It is a self number, because there is not a number n which added to its sum of digits gives 205071472.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86203 + ... + 88549.

Almost surely, 2^205071472 is an apocalyptic number.

It is an amenable number.

205071472 is a deficient number, since it is larger than the sum of its proper divisors (204870544).

205071472 is a wasteful number, since it uses less digits than its factorization.

205071472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525 (or 2519 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 205071472 is about 14320.3167562732. The cubic root of 205071472 is about 589.7053704663.

The spelling of 205071472 in words is "two hundred five million, seventy-one thousand, four hundred seventy-two".